Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NL55628Aexternal-prioritypatent/NL33943C/nl
Application filedfiledCritical
Priority to NL66291ApriorityCriticalpatent/NL38231C/nl
Application grantedgrantedCritical
Publication of NL38231CpublicationCriticalpatent/NL38231C/nl